Seismologists on Wednesday are studying the latest swarm of Earthquakes in Southern California after the area was shaken by the second moderate but widely felt earthquake in less than 11 hours, but no harm was reported.
On Wednesday at Cal Tech in Pasadena, Experts talked about the latest event and also demonstrated the latest in new early warning earthquake technology.
The U.S. Geological Survey said the magnitude-4.5 quake occurred at 9:33 a.m. Wednesday and was centered two miles northeast of the Orange County city of Yorba Linda, about 35 miles southeast of Los Angeles.
A magnitude-4.5 quake centered in the same area struck late Tuesday night. Both temblors were followed by numerous aftershocks that were mostly too small to be felt.
The Orange County Fire Authority said it did not receive any 911 calls about the latest quake.
Seismologist Kate Hutton of the California Institute of Technology characterized the quakes as a swarm.
The location is near the Whittier Fault, but she said the quakes could be occurring on an unmapped fault.
WJBK-TV | Fox 2
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